Railway Tools / Measuring Instruments / Track Measuring / Inspection Tools / Track Gauges / Calibration Tools-DITT (Hangzhou) Technology Co., Ltd.

Railway Tools & Measuring Instruments

One-stop Supply of Professional Railway Tools

DITT provides a comprehensive range of railway tools and measuring instruments for track inspection, rolling stock maintenance, electrification measurement and railway calibration applications. Our portfolio includes track gauges, railway squares, rail profile and slope measuring instruments, laser measuring tools, vehicle measurement tools, calibration instruments and various auxiliary railway tools. With flexible product selection and technical support, we help railway operators, maintenance teams, contractors and project companies source suitable tools according to different railway standards, operating conditions and maintenance requirements.

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Solution

Complete Railway Tool Portfolio

From track measurement and rail inspection to rolling stock measurement, electrification testing and calibration instruments, DITT provides integrated sourcing and supply support for railway operators, contractors and maintenance teams.
Our team can assist customers in selecting suitable products based on track gauge, application, measuring range, accuracy requirements and operating environment, helping simplify procurement and improve project efficiency.

Why Choose Us

Wide Product Range

Covers railway measurement, inspection, calibration, maintenance and auxiliary tools for different railway applications.

Railway-Specific Applications

Products are designed for track, rolling stock, electrification and railway maintenance scenarios.

Flexible Product Selection

Different specifications, measuring ranges and configurations are available according to project requirements.

Integrated Supply Service

We support product selection, technical confirmation, quotation, export and consolidated delivery for railway projects.

About Us

Founded in 2018, DITT applies AI visual intelligence to rail transit. Built on our own visual perception algorithms, intelligent hardware and O&M systems, we deliver a full inspection portfolio spanning onboard and wayside applications, now serving 20+ rail transit systems across China.

Together with our subsidiaries — Zhonggang Maintenance, Zhongshu Laser and Yunshang Urban Rail — we are moving rail transit O&M toward predictive maintenance and full-lifecycle management.

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Company Establishment

Invention Patents

Metro Clients Served

0%+

R&D Proportion of Revenue

Related Products

Laser Clearance Inspection System

A non-contact dynamic limit detection system, based on a 3D laser profilometer and machine vision, automatically performs external profile acquisition, limit exceedance assessment, and audio-visual alarms when vehicles pass through; this system provides real-time limit safety assurance for the entry and exit operations of rail transit vehicles during maintenance.

360 Intelligent Dynamic Visual Inspection System for Train Exterior

The 360 system integrates high-definition imaging and deep learning technologies to enable non-stop intelligent detection, accurately identifying the status of critical components in trains. This capability facilitates efficient fault diagnosis in metro operations and maintenance, thereby providing comprehensive safeguards for the operational safety of urban rail transit systems.

Train Inspection Robot

The vehicle inspection robot system primarily consists of a robot, charging stations, track transfer equipment, a wireless network, a backend processing center, and a management platform. By leveraging the robot, computer vision technology, diverse control techniques, and advanced algorithms, the system automatically captures images of the undercarriage and side of the vehicle, and can utilize these algorithms to detect and identify vehicle anomalies.

Latest News

DITT Makes a Striking Appearance at MetroTrans 2025 China International Urban Rail Transit Exhibition and CAMET Forum

On September 18, the three-day "2025 China International Urban Rail Transit Exhibition" (MetroTrans 2025) officially opened at the CRCC Qingdao World Expo City.

1970-01-01 View Details

The EMU Intelligent Inspection System Application Project Jointly Developed by DITT and Changzhou Metro Passes Expert Review

On August 30, 2025, Changzhou Metro Group held the "Changzhou Metro Line 1 EMU Intelligent Inspection System Expert Review Meeting" at the Baizhang Depot.

1970-01-01 View Details

Frequently Asked Questions

What types of railway tools do you supply?

We supply a wide range of railway measuring, inspection, calibration and maintenance tools, including track gauges, railway squares, rail measuring instruments, laser measuring tools, vehicle measurement tools, electrification measuring instruments and calibration equipment.

Can you recommend a suitable product based on my application?

Yes. Please provide the application, track gauge, measuring range, required accuracy and operating conditions. Our team can recommend suitable models according to your technical requirements.

Are different measuring ranges and specifications available?

Yes. Many products are available in different specifications, measuring ranges and configurations. Availability depends on the specific product and application requirements.

Can the products be used for both railway construction and maintenance?

Yes. Different products in our portfolio are suitable for railway construction, routine inspection, preventive maintenance, vehicle maintenance and technical verification applications.

Do you provide technical documents and product specifications?

Yes. Technical specifications, product information and available documentation can be provided according to the selected product and project requirements.

Can you supply products according to a customer's technical specification?

Yes. Customers may send us technical specifications, drawings, model references or tender requirements. We will review the information and confirm suitable products or configurations accordingly.